I bought an R4-III, Edge, and Acekard2 from r4dusa.com (was a 1st time impulse buyer with 0 research), just wanted to try a few diff cards.
All arrived quickly, and in working condition.
A couple of weeks into using the Acekard2... Fat Error... e-mailed em and told him about all the posts i read here and similar errors... he had me do the RMA and send it back.
Since then he has put up an out of stock and is waiting for the v1.2 Acekard2 to come in on Oct 1.
He offered either a diff card, a refund, or my patience till Oct 1... i chose to wait.
The guy i've been dealing with (Anthony Peccon), seems very nice so far, no issues.
(Yea yea, the R4-III is a ripoff of the R4 model, but it works for me, funny part is the card i really like of the 3 purchased is the one that failed
At least i have the RPG till the 2 shows back up.)